Remi 0.1= dose of remifentanil for the induction of anesthesia is 0.1 µg/kg/min (n=30) Remi 0.2= dose of remifentanil for the induction of anesthesia is 0.2 µg/kg/min (n=30) Remi 0.3= dose of remifentanil for the induction of anesthesia is 0.3 µg/kg/min (n=30) The patients and the anesthesiologist, who would perform the induction of anesthesia, were blind for remifentanil dose.